氮锌配施对小麦锌转运、分配与累积的影响

doi:10.13287/j.1001-9332.202001.027

应用生态学报 ›› 2020, Vol. 31 ›› Issue (1): 148-156.doi: 10.13287/j.1001-9332.202001.027

氮锌配施对小麦锌转运、分配与累积的影响

杨习文^1,2,3, 宋淼^1,2,3, 李秋杰^1,2,3, 周苏玫^1,2,3, 韩少宇^1,2,3, 陈旭^1,2,3, 徐利利^1,2,3, 贺德先^1,2,3*

¹河南农业大学农学院, 郑州 450046;
²省部共建小麦玉米作物学国家重点实验室, 郑州 450046;
³河南粮食作物协同创新中心, 郑州 450046

收稿日期:2019-04-08 出版日期:2020-01-15 发布日期:2020-01-15
通讯作者: E-mail: hed@henau.edu.cn
作者简介:杨习文, 男, 1975年生, 博士,副教授。主要从事小麦高产高效栽培和农田养分资源管理研究。E-mail: yangxwemail@163.com
基金资助:
国家重点研发计划项目(2018YFD0300701)和国家科技支撑计划项目(2013BAD07B07-4)

Impacts of combined N and Zn application on Zn translocation, partitioning, and accumulation in Triticum aestivum

YANG Xi-wen^1,2,3, SONG Miao^1,2,3, LI Qiu-jie^1,2,3, ZHOU Su-mei^1,2,3, HAN Shao-yu^1,2,3, CHEN Xu^1,2,3, XU Li-li^1,2,3, HE De-xian^1,2,3*

¹College of Agronomy, Henan Agricultural University, Zhengzhou 450046, China;
²Co-construction State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou 450046, China;
³Collaborative Innovation Center of Henan Grain Crops, Zhengzhou 450046, China

Received:2019-04-08 Online:2020-01-15 Published:2020-01-15
Contact: E-mail: hed@henau.edu.cn
Supported by:
This work was supported by the National Key R&D Program of China (2018YFD0300701) and the National Science and Technology Support Program of China (2013BAD07B07-4).

摘要/Abstract

摘要： 通过田间试验,研究不同氮锌肥运筹方式对小麦植株不同器官中锌的转运、分配与累积的影响。结果表明: 不同处理植株器官中锌浓度和锌累积量的差异达显著水平。与N₃(120 kg·hm^-2)相比,N₁(240 kg·hm^-2)和N₂(180 kg·hm^-2)的籽粒锌浓度分别提高22.0%和8.9%;与未施锌(CK)相比,ZnS(土施锌肥)、ZnF(喷施锌肥)和ZnS+ZnF(土施结合喷施锌肥)处理的籽粒锌浓度分别提高15.4%、60.5%和72.8%,籽粒锌累积量分别提高21.3%、82.5%和102.4%。籽粒中锌主要来自花后吸收锌的再分配,在ZnF和ZnS+ZnF处理中的累积贡献率分别为89.9%和100.0%,锌肥回收率分别较ZnS提高4.8和1.1倍,锌肥利用率分别提高7.9和2.2倍。当前生产条件下,当施氮量<240 kg·hm^-2时,小麦不同器官锌浓度和锌累积量均随施氮量的增加而提高,喷施锌肥可显著提高籽粒中的锌浓度和锌累积量。因而,生产中可通过维持高产施氮方案并结合生育后期喷施锌肥的措施来提高籽粒中的锌浓度和锌累积量,从而提高小麦籽粒锌营养品质。

Abstract: Field experiment was conducted to examine the effects of combined application of N and Zn fertilizers on translocation, distribution, and accumulation of Zn in different organs in wheat plants. The results showed that Zn concentration and Zn accumulation in each organ were significantly different under different treatments. Compared with N₃ (120 kg·hm^-2), the grain Zn concentration of N₁ (240 kg·hm^-2) and N₂ (180 kg·hm^-2) increased 22.0% and 8.9%, respectively. Compared with the non-Zn application treatment (CK), grain Zn concentration under ZnS (soil Zn fertilization), ZnF (foliar Zn fertilization), and ZnS+ZnF (soil Zn fertilization combined with foliar Zn fertilization) treatments were increased by 5.4%, 60.5% and 72.8%, while Zn accumulation in grain were increased by 21.3% 82.5% and 102.4%, respectively. Zn in grain mainly came from the remobilization of Zn uptaken after antheis, with the accumulative contribution being 89.9% and 100.0% in ZnF and ZnS+ZnF, respectively. Compared with ZnS, Zn fertilizer recovery and use efficiency of ZnF and ZnS+ZnF were increased by 4.8, 1.1 times and 7.9, 2.2 times, respectively. Under current condition, Zn concentration and Zn accumulation in different organs of wheat increased with increasing N rate when it was less than 240 kg·hm^-2, which was significantly increased in the grain by foliar Zn application. Therefore, Zn concentration and Zn accumulation in wheat grain could be increased by maintaining the high-yield N fertilization and combining the foliar Zn application in the late growth stage, which would improve Zn nutritional quality of wheat grain.

杨习文, 宋淼, 李秋杰, 周苏玫, 韩少宇, 陈旭, 徐利利, 贺德先. 氮锌配施对小麦锌转运、分配与累积的影响[J]. 应用生态学报, 2020, 31(1): 148-156.

YANG Xi-wen, SONG Miao, LI Qiu-jie, ZHOU Su-mei, HAN Shao-yu, CHEN Xu, XU Li-li, HE De-xian. Impacts of combined N and Zn application on Zn translocation, partitioning, and accumulation in Triticum aestivum[J]. Chinese Journal of Applied Ecology, 2020, 31(1): 148-156.

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氮锌配施对小麦锌转运、分配与累积的影响

Impacts of combined N and Zn application on Zn translocation, partitioning, and accumulation in Triticum aestivum

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